# Rejoin rows after JSON Flattener

**URL:** <https://community.parabola.io/t/rejoin-rows-after-json-flattener/713>\
**Category:** Ask a question\
**Tags:** Building-Flows\
**Created:** [June 18, 2020, 9:00pm UTC](https://community.parabola.io/t/rejoin-rows-after-json-flattener/713 "2020-06-18T21:00:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Derek\_Turner](https://avatars.discourse-cdn.com/v4/letter/d/f08c70/32.png) [@Derek\_Turner](https://community.parabola.io/u/Derek_Turner)\
**Post date:** [June 18, 2020, 9:00pm UTC](https://community.parabola.io/t/rejoin-rows-after-json-flattener/713/1 "2020-06-18T21:00:35Z")

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![Screen Shot 2020-06-18 at 4.00.00 PM](https://us1.discourse-cdn.com/flex020/uploads/parabola/original/1X/63d6449f1e6e9561ef40ba4594d42a1723a1542e.jpeg)

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**Author:** ![sachi](https://sea2.discourse-cdn.com/flex020/user_avatar/community.parabola.io/sachi/32/10_2.png) [@sachi](https://community.parabola.io/u/sachi)\
**Post date:** [June 19, 2020, 12:40am UTC](https://community.parabola.io/t/rejoin-rows-after-json-flattener/713/2 "2020-06-19T00:40:45Z")

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Hi @Derek_Turner! Thanks for posting in the community.

The [Dedupe step](https://parabola.io/transforms/dedupe) should work for you here.

1. Select the `Student` column from the Column dropdown
2. Check off the checkbox to “Merge Duplicates”
3. Select the `Camps` column from the dropdown to “Merge These Columns”
4. You can keep the Merge Delimiter to `,`

Let me know how this goes!